/*function for checking blank fields*/
function IsBlank(FormName,ElemName){
	
	var frmElement=document.forms[FormName].elements[ElemName];
	var temp;
	var countSpace=0;
	for(var i=0;i<frmElement.value.length;i++){
		temp=frmElement.value.substring(i,i+1);
		if(temp.indexOf(" ")!=-1){
			countSpace++;
		}
	}
	if (countSpace==frmElement.value.length)
		return (false);
	
	return (true);
}

/*function for checking Email address*/
function IsEmailValid(FormName,ElemName)
	{
	
	/*if (validDigits(FormName,ElemName)==false){
		return (false);
	}*/
	var EmailOk  = true
	var Temp     = document.forms[FormName].elements[ElemName]
	var AtSym    = Temp.value.indexOf('@')
	var Period   = Temp.value.lastIndexOf('.')
	var Space    = Temp.value.indexOf(' ')
	var Dot      = Temp.value.indexOf('.')
	var Length   = Temp.value.length - 1   // Array is from 0 to length-1

	if ((AtSym < 1) ||                     // '@' cannot be in first position
	    (Period <= AtSym+1) ||             // Must be atleast one valid char btwn '@' and '.'
	    (Period == Length ) ||             // Must be atleast one valid char after '.'
	    (Space  != -1)      ||              // No empty spaces permitted
	    (Dot ==0 )          ||            // No Dot on first position permitted
	    (Dot+1 ==AtSym ))                      // No Dot on first position permitted
	   {  
	      EmailOk = false
	   }
	return EmailOk
}
/*function for checking valid digits*/

function validDigits(FormName,ElemName){
	var digits="0123456789.";
	var frmElement=document.forms[FormName].elements[ElemName];
	var temp;
	for(var i=0;i<frmElement.value.length;i++){
		temp=frmElement.value.substring(i,i+1);
		if(digits.indexOf(temp)==-1){
			return (false);
		}
	}
	return (true);
}


function toggleLayer (layer, img)
{
 if (document.getElementById(layer).style.visibility == 'visible')
 {
	
  	hideLayer (layer, img)
 }
 else 
 {
  	showLayer (layer, img)
 }

}

function hideLayer (layerName, img)
{
			document.getElementById(layerName).style.visibility = "hidden";
			document.getElementById(layerName).style.display = "none";			
			img.src='images/down_a.gif';
}
function showLayer (layerName, img)
{

 			document.getElementById(layerName).style.visibility = "visible";
			document.getElementById(layerName).style.display = "block";						
			img.src='images/up_a.gif';
} 

function textCounter(field, countfield, maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else 
countfield.value = maxlimit - field.value.length;
}


function UpdateFieldValue(formName,fieldName,chkValue,strValue){

//alert(str);
frmfield="document.forms."+formName+"."+fieldName;
frmField=eval(frmfield);

if(chkValue.checked==true)
	{
		frmField.value+=strValue+";";
	}
else if(chkValue.checked==false)
	{
	str1=strValue+";";
	str=frmField.value;
	newStr=str.replace(str1,"");
	frmField.value=newStr;	
	}

}

function getCountryCode(){

var x=document.frm.strCountry.options[document.frm.strCountry.options.selectedIndex].value;
loadHTML("change_code.php?code=" + x,"signup_cntryCode");

}