function mailingListCheck(){
		if(document.mainform.mailing_list[0].checked && document.mainform.email.value == ''){
			alert('E-mail address is required.');
			return false;
		}else if(document.mainform.usMail[0].checked && document.mainform.address1.value == '' || document.mainform.city.value == '' || document.mainform.state.value == ''  || document.mainform.zip.value == ''){
			alert('Address 1, City, State and Zip are required.');
			return false;		
		}else{
			return true;
		}
	}	
	
    function formCheck(formobj){
    	// Enter name of mandatory fields
    	var fieldRequired = Array("first_name", "last_name");
    	// Enter field description to appear in the dialog box
    	var fieldDescription = Array("First Name", "Last Name");
    	// dialog message
    	var alertMsg = "Please complete the following fields:\n";
    	
    	var l_Msg = alertMsg.length;
		
    	for (var i = 0; i < fieldRequired.length; i++){
    		var obj = formobj.elements[fieldRequired[i]];
    		if (obj){				
    			switch(obj.type){
    			case "select-one":
    				if (obj.selectedIndex == -1 | obj.options[obj.selectedIndex].text == ""){
    					alertMsg += " - " + fieldDescription[i] + "\n";
    				}
    				break;
    			case "select-multiple":
    				if (obj.selectedIndex == -1){
    					alertMsg += " - " + fieldDescription[i] + "\n";
    				}
    				break;
    			case "text":
    			case "textarea":
    				if (obj.value == "" || obj.value == null){
    					alertMsg += " - " + fieldDescription[i] + "\n";
    				}
    				break;
    			default:
    			}
    			if (obj.type == undefined){
    				var blnchecked = false;
    				for (var j = 0; j < obj.length; j++){
    					if (obj[j].checked){
    						blnchecked = true;
    					}
    				}
    				if (!blnchecked){
    					alertMsg += " - " + fieldDescription[i] + "\n";
    				}
    			}
    		}
    	}
    
    	if (alertMsg.length == l_Msg){
			return mailingListCheck();
    		return true;
    	}else{
    		alert(alertMsg);
    		return false;
    	}
    }