function getMart(project,state,elementid,val){
                $.ajax({
                    url: '/content/aquarium/inc/getmart.php',
                    type:"get",
                    dataType:"json",
                    data: "id="+state,
                    success:function(json){
                    		var optionsData = document.getElementById(elementid);
                    		for(i = optionsData.options.length - 1 ; i >= 1 ; i--){
						    	optionsData.options[i] = null;
						    }
                    		//document.getElementById(elementid).options.length = 0;
                    		for(i=0;i<json.length;i++){
								oOption = addOptionToSelect(json[i],elementid,val);
							}
							/*if(document.getElementById(elementid).options.length == 0){
								document.getElementById(elementid).disabled = 'disabled';
							}else{
								document.getElementById(elementid).disabled = '';
							}*/
                    }
                });
            }
            
function addOptionToSelect(option,ElementId,val){
	var oOption = document.createElement("option");
	oOption.text=option.m_name;
	oOption.value=option.martid;
	if(option.martid == val){
		oOption.selected='selected';
	}
	document.getElementById(ElementId).options.add(oOption);
    return oOption;
}