// JavaScript Document
function isValidUrl(field)
{
	//alert(field);
	var re = /http:\/\/([\w-]+\.)+[\w-]+(\/[\w- .\/?%&=]*)?/;
	//var re = /([\w-]+\.)+[\w-]+(\/[\w- .\/?%&=]*)?/;
	//alert(re.test(field.value));
	if(re.test(field.value))
	{
		return true;
	}
	return false;
}

// start of trim function 
function trim(inputString)
{
	// Removes leading and trailing spaces from the passed string. Also removes
	// consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
	  retValue = retValue.substring(1, retValue.length);
	  ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
	  retValue = retValue.substring(0, retValue.length-1);
	  ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
	  retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function

function ClearSearchBox()
{
	var SearchKeyword1 = trim(document.getElementById("searchString").value);
	
	if(SearchKeyword1=="Search Spot-Optics.com")
	{
		document.getElementById("searchString").value="";
	}	
	
}	
function ClearSearchBox1()
{
	var SearchKeyword1 = trim(document.getElementById("searchString").value);
	if(SearchKeyword1=="")
	{
		document.getElementById("searchString").value="Search Spot-Optics.com";
	}		
}

//handling search keywords
function submitpage()
{
	document.searchresults.searchingword.value = document.searchresults.searchString.value;
	document.searchresults.submit();		
}