function openWin( windowURL, windowName, windowFeatures ) { 
                return window.open( windowURL, windowName, windowFeatures ) ; 
        } 

        function openWin( windowURL, windowName, windowFeatures ) { 
                return window.open( windowURL, windowName, windowFeatures ) ; 
        } 


var needValidate = false;

var defaultVal2 = "Ask an expert, they can help! Just type your question and click send!";
function  openchatwindow(cbForm,windowName) {
	var res = true;

	var msg = document.getElementById("lp_msgfield");

	if(needValidate){
		var validateMessage = "Before you start your chat, type in the following fields:\r\n ";

		if(msg.value.length==0 || msg.value==defaultVal2 ){
			validateMessage += "Your Question\r\n";
			res=false;
		}
		if(res==false){
			alert(validateMessage);
		}

	}

    var formurl = cbForm.action;
    if(formurl.indexOf('?')==-1)
        formurl += '?';
    var elemCol = cbForm.elements;
    for(var ie=0; ie<elemCol.length; ie++){
        var et = elemCol[ie].type;
        if(et=="text" || et=="hidden" || et=="radio" || et=="textarea"){
            formurl += elemCol[ie].name + "=" + escape(elemCol[ie].value) + "&amp;" ;
        }
    }

	if(res==true)
		window.open(formurl, windowName,'width=475,height=400,resizable=yes');
	return res;
}
    <!-- BEGIN LivePerson Button Code -->
    <!--BEGIN LIVEPERSON CHATBOX CODE-->
var needValidate = false;

var defaultVal2 = "Ask an expert, they can help! Just type your question and click send!";
function  openchatwindow(cbForm,windowName) {
	var res = true;

	var msg = document.getElementById("lp_msgfield");

	if(needValidate){
		var validateMessage = "Before you start your chat, type in the following fields:\r\n ";

		if(msg.value.length==0 || msg.value==defaultVal2 ){
			validateMessage += "Your Question\r\n";
			res=false;
		}
		if(res==false){
			alert(validateMessage);
		}

	}

    var formurl = cbForm.action;
    if(formurl.indexOf('?')==-1)
        formurl += '?';
    var elemCol = cbForm.elements;
    for(var ie=0; ie<elemCol.length; ie++){
        var et = elemCol[ie].type;
        if(et=="text" || et=="hidden" || et=="radio" || et=="textarea"){
            formurl += elemCol[ie].name + "=" + escape(elemCol[ie].value) + "&amp;" ;
        }
    }

	if(res==true)
		window.open(formurl, windowName,'width=475,height=400,resizable=yes');
	return res;
}