function fillCategory(){ 
 // this function is used to fill the category list on load
addOption(document.drop_list.prop_id, "113", "15 LaSalle Avenue", "115");
addOption(document.drop_list.prop_id, "139", "38 North Street", "139");
addOption(document.drop_list.prop_id, "164", "62 Hertel Avenue", "164");
addOption(document.drop_list.prop_id, "142", "70 Niagara Street", "142");
addOption(document.drop_list.prop_id, "201", "98 North Street", "201");
addOption(document.drop_list.prop_id, "160", "144 Edward Street", "160");
addOption(document.drop_list.prop_id, "202", "213 North Street", "202");
addOption(document.drop_list.prop_id, "136", "270 Abbott Road", "136");
addOption(document.drop_list.prop_id, "301", "245 Fluvanna", "301");
addOption(document.drop_list.prop_id, "103", "313 West Ferry", "103");
addOption(document.drop_list.prop_id, "133", "343 West Ferry", "133");
addOption(document.drop_list.prop_id, "203", "360 Grant Avenue", "203");
addOption(document.drop_list.prop_id, "173", "374 Delaware Avenue", "173");
addOption(document.drop_list.prop_id, "121", "455 Delaware Avenue", "121");
addOption(document.drop_list.prop_id, "131", "534 Delaware Avenue", "131");
addOption(document.drop_list.prop_id, "302", "609 Foote Avenue", "302");
addOption(document.drop_list.prop_id, "146", "650 Orchard Park Road", "146");
addOption(document.drop_list.prop_id, "149", "651 Delaware Avenue", "149");
addOption(document.drop_list.prop_id, "148", "653 Main Street", "148");
addOption(document.drop_list.prop_id, "701", "812 Roland Avenue", "701");
addOption(document.drop_list.prop_id, "134", "830 Abbott Road", "134");
addOption(document.drop_list.prop_id, "147", "897 Delaware Avenue", "147");
addOption(document.drop_list.prop_id, "127", "920 Abbott Road", "127");
addOption(document.drop_list.prop_id, "140", "1141 Kenmore Avenue", "140");
addOption(document.drop_list.prop_id, "141", "1137 Kenmore Avenue", "141");
addOption(document.drop_list.prop_id, "135", "1154 Niag-Falls Blvd", "135");
addOption(document.drop_list.prop_id, "112", "1207 Delaware Avenue", "112");
addOption(document.drop_list.prop_id, "159", "1231 Delaware Avenue", "159");
addOption(document.drop_list.prop_id, "129", "1311 Union Road", "129");
addOption(document.drop_list.prop_id, "171", "2162 Seneca Street", "171");
addOption(document.drop_list.prop_id, "158", "2166 Seneca Street", "158");
addOption(document.drop_list.prop_id, "156", "2238 Seneca Street", "156");
addOption(document.drop_list.prop_id, "138", "2550 Delaware Avenue", "138");
addOption(document.drop_list.prop_id, "101", "2558 Delaware Avenue", "101");
addOption(document.drop_list.prop_id, "102", "2625 Delaware Avenue", "102");
addOption(document.drop_list.prop_id, "115", "2938-2940 Delaware Avenue", "115");
addOption(document.drop_list.prop_id, "114", "3060 Delaware Avenue", "114");
addOption(document.drop_list.prop_id, "143", "3411 Bailey Avenue", "143");
addOption(document.drop_list.prop_id, "110", "3730 Sheridan Drive", "110");
addOption(document.drop_list.prop_id, "117", "6199 Transit Road", "117");
}

function SelectSubCat(){
// ON selection of category this function will work

removeAllOptions(document.drop_list.unit_id);
addOption(document.drop_list.unit_id, "", "Unit Number", "");

if(document.drop_list.prop_id.value == '101'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '102'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"105", "105");
addOption(document.drop_list.unit_id,"106", "106");
addOption(document.drop_list.unit_id,"108", "108");
addOption(document.drop_list.unit_id,"121", "121");
addOption(document.drop_list.unit_id,"122", "122");
addOption(document.drop_list.unit_id,"125", "105");
addOption(document.drop_list.unit_id,"131", "131");
addOption(document.drop_list.unit_id,"132", "132");
addOption(document.drop_list.unit_id,"133", "133");
addOption(document.drop_list.unit_id,"134", "134");
addOption(document.drop_list.unit_id,"135", "135");
addOption(document.drop_list.unit_id,"136", "136");
addOption(document.drop_list.unit_id,"137", "137");
addOption(document.drop_list.unit_id,"201", "201");

}

if(document.drop_list.prop_id.value == '103'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
}

if(document.drop_list.prop_id.value == '110'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"105", "105");
}

if(document.drop_list.prop_id.value == '112'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"011", "011");
addOption(document.drop_list.unit_id,"012", "012");
addOption(document.drop_list.unit_id,"013", "013");
addOption(document.drop_list.unit_id,"100", "100");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"106", "106");
addOption(document.drop_list.unit_id,"107", "107");
addOption(document.drop_list.unit_id,"108", "108");
addOption(document.drop_list.unit_id,"110", "110");
addOption(document.drop_list.unit_id,"112", "112");
addOption(document.drop_list.unit_id,"114", "114");
addOption(document.drop_list.unit_id,"116", "116");
addOption(document.drop_list.unit_id,"118", "118");
addOption(document.drop_list.unit_id,"120", "120");
addOption(document.drop_list.unit_id,"200", "200");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"203", "203");
addOption(document.drop_list.unit_id,"204", "204");
addOption(document.drop_list.unit_id,"205", "205");
addOption(document.drop_list.unit_id,"206", "206");
addOption(document.drop_list.unit_id,"207", "207");
addOption(document.drop_list.unit_id,"208", "208");
addOption(document.drop_list.unit_id,"209", "209");
addOption(document.drop_list.unit_id,"210", "210");
addOption(document.drop_list.unit_id,"212", "212");
addOption(document.drop_list.unit_id,"214", "214");
addOption(document.drop_list.unit_id,"216", "216");
addOption(document.drop_list.unit_id,"217", "217");
addOption(document.drop_list.unit_id,"218", "218");
addOption(document.drop_list.unit_id,"219", "219");
addOption(document.drop_list.unit_id,"220", "220");
addOption(document.drop_list.unit_id,"222", "222");
addOption(document.drop_list.unit_id,"301", "301");
addOption(document.drop_list.unit_id,"302", "302");
addOption(document.drop_list.unit_id,"303", "303");
addOption(document.drop_list.unit_id,"304", "304");
addOption(document.drop_list.unit_id,"305", "305");
}

if(document.drop_list.prop_id.value == '113'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"107", "107");
addOption(document.drop_list.unit_id,"108", "108");
addOption(document.drop_list.unit_id,"110", "110");
}

if(document.drop_list.prop_id.value == '114'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
}

if(document.drop_list.prop_id.value == '115'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"105", "105");
addOption(document.drop_list.unit_id,"111", "111");
addOption(document.drop_list.unit_id,"112", "112");
addOption(document.drop_list.unit_id,"113", "113");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"203", "203");
}

if(document.drop_list.prop_id.value == '117'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"105", "105");
}

if(document.drop_list.prop_id.value == '121'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
}

if(document.drop_list.prop_id.value == '127'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '129'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '131'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"012", "012");
addOption(document.drop_list.unit_id,"013", "013");
addOption(document.drop_list.unit_id,"014", "014");
addOption(document.drop_list.unit_id,"14a", "14a");
addOption(document.drop_list.unit_id,"015", "015");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"104", "105");
addOption(document.drop_list.unit_id,"106", "106");
addOption(document.drop_list.unit_id,"107", "107");
addOption(document.drop_list.unit_id,"108", "108");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"203", "203");
addOption(document.drop_list.unit_id,"204", "204");
addOption(document.drop_list.unit_id,"205", "205");
addOption(document.drop_list.unit_id,"206", "206");
addOption(document.drop_list.unit_id,"207", "207");
addOption(document.drop_list.unit_id,"300", "300");
addOption(document.drop_list.unit_id,"301", "301");
addOption(document.drop_list.unit_id,"302", "302");
addOption(document.drop_list.unit_id,"303", "303");
addOption(document.drop_list.unit_id,"304", "304");
addOption(document.drop_list.unit_id,"305", "305");
}

if(document.drop_list.prop_id.value == '133'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '134'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
}


if(document.drop_list.prop_id.value == '135'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
}


if(document.drop_list.prop_id.value == '136'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '138'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"201", "201");
}

if(document.drop_list.prop_id.value == '139'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '140'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '141'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '142'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"011", "011");
addOption(document.drop_list.unit_id,"012", "012");
addOption(document.drop_list.unit_id,"013", "013");
addOption(document.drop_list.unit_id,"014", "014");
addOption(document.drop_list.unit_id,"015", "015");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"106", "106");
addOption(document.drop_list.unit_id,"107", "107");
addOption(document.drop_list.unit_id,"108", "108");
addOption(document.drop_list.unit_id,"109", "109");
addOption(document.drop_list.unit_id,"110", "110");
addOption(document.drop_list.unit_id,"111", "111");
addOption(document.drop_list.unit_id,"200", "200");
addOption(document.drop_list.unit_id,"210", "210");
addOption(document.drop_list.unit_id,"211", "211");
addOption(document.drop_list.unit_id,"301", "301");
addOption(document.drop_list.unit_id,"401", "401");
addOption(document.drop_list.unit_id,"404", "404");
addOption(document.drop_list.unit_id,"408", "408");
addOption(document.drop_list.unit_id,"410", "410");
addOption(document.drop_list.unit_id,"501", "501");
addOption(document.drop_list.unit_id,"502", "502");

}

if(document.drop_list.prop_id.value == '143'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '146'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '147'){
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"203", "203");
addOption(document.drop_list.unit_id,"204", "204");
addOption(document.drop_list.unit_id,"205", "205");
addOption(document.drop_list.unit_id,"206", "206");
addOption(document.drop_list.unit_id,"301", "301");
}

if(document.drop_list.prop_id.value == '148'){
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"105", "105");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"203", "203");
addOption(document.drop_list.unit_id,"204", "204");
}

if(document.drop_list.prop_id.value == '149'){
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"110", "110");
addOption(document.drop_list.unit_id,"118", "118");
addOption(document.drop_list.unit_id,"119", "119");
addOption(document.drop_list.unit_id,"120", "120");
addOption(document.drop_list.unit_id,"123", "123");
addOption(document.drop_list.unit_id,"124", "124");
addOption(document.drop_list.unit_id,"127", "127");
addOption(document.drop_list.unit_id,"128", "128");
addOption(document.drop_list.unit_id,"134", "134");
addOption(document.drop_list.unit_id,"139", "139");
addOption(document.drop_list.unit_id,"140", "140");
addOption(document.drop_list.unit_id,"141", "141");
addOption(document.drop_list.unit_id,"142", "142");
addOption(document.drop_list.unit_id,"143", "143");
addOption(document.drop_list.unit_id,"144", "144");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"204", "204");
addOption(document.drop_list.unit_id,"205", "205");
addOption(document.drop_list.unit_id,"210", "210");
addOption(document.drop_list.unit_id,"211", "211");
addOption(document.drop_list.unit_id,"212", "212");
addOption(document.drop_list.unit_id,"213", "213");
addOption(document.drop_list.unit_id,"214", "214");
addOption(document.drop_list.unit_id,"222", "222");
addOption(document.drop_list.unit_id,"229", "229");
}

if(document.drop_list.prop_id.value == '156'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '158'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '159'){
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"203", "203");
addOption(document.drop_list.unit_id,"204", "204");
}

if(document.drop_list.prop_id.value == '160'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '164'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '171'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '173'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"201", "201");
addOption(document.drop_list.unit_id,"202", "202");
addOption(document.drop_list.unit_id,"207", "207");
addOption(document.drop_list.unit_id,"209", "209");
addOption(document.drop_list.unit_id,"230", "230");
addOption(document.drop_list.unit_id,"250", "250");
addOption(document.drop_list.unit_id,"301", "301");
addOption(document.drop_list.unit_id,"302", "302");
addOption(document.drop_list.unit_id,"304", "304");
addOption(document.drop_list.unit_id,"314", "314");
addOption(document.drop_list.unit_id,"333", "333");
addOption(document.drop_list.unit_id,"402", "402");
addOption(document.drop_list.unit_id,"403", "403");
addOption(document.drop_list.unit_id,"404", "404");
addOption(document.drop_list.unit_id,"405", "405");
addOption(document.drop_list.unit_id,"406", "406");
addOption(document.drop_list.unit_id,"407", "407");
}






if(document.drop_list.prop_id.value == '201'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
}

if(document.drop_list.prop_id.value == '202'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"105", "105");
addOption(document.drop_list.unit_id,"106", "106");
}

if(document.drop_list.prop_id.value == '203'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
addOption(document.drop_list.unit_id,"102", "102");
addOption(document.drop_list.unit_id,"103", "103");
addOption(document.drop_list.unit_id,"104", "104");
addOption(document.drop_list.unit_id,"106", "106");
addOption(document.drop_list.unit_id,"107", "107");
}

if(document.drop_list.prop_id.value == '301'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '302'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

if(document.drop_list.prop_id.value == '701'){
addOption(document.drop_list.unit_id,"000", "000");
addOption(document.drop_list.unit_id,"101", "101");
}

//end function
}
////////////////// 

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}


function addOption(selectbox, value, text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;

	selectbox.options.add(optn);
}