function junk_alert(str){
	symb1 = new Array(33);
	symb1[0]="!";
	symb1[1]="@";
	symb1[2]="#";
	symb1[3]="%";
	symb1[4]="^";
	symb1[5]="&";
	symb1[6]="*";
	symb1[7]="()";
	symb1[8]="()";
	symb1[9]="~";
	symb1[10]="(";
	symb1[11]=")";
	symb1[12]="<>";
	symb1[13]="<";
	symb1[14]=">";
	symb1[15]=",";
	symb1[16]=".";
	symb1[17]="?";
	symb1[18]="/";
	symb1[19]=":";
	symb1[20]=";";
	symb1[21]="\"";
	symb1[22]="{}";
	symb1[23]="}";
	symb1[24]="{";
	symb1[25]="[]";
	symb1[26]="[";
	symb1[27]="]";
	symb1[28]="+";
	symb1[29]="=";
	symb1[30]="-";
	symb1[31]="|";
	symb1[32]="\\";
	
  for(var jj=0;jj<symb1.length;jj++)
  {
    if(str.indexOf(symb1[jj])>=0)
    {
		return true;
    }  
  }
  return false;
}

function gosearch()
	{
		var strTemp = new String();
		strTemp = document.frmsearch.txtsearchstring.value;
		
		if (strTemp.length < 3){
			alert("Enter A keyword.");
			document.frmsearch.txtsearchstring.focus();			
			return false;
		}
		else if (junk_alert(document.frmsearch.txtsearchstring.value)){
			alert("Keyword contains invalid characters.")
			document.frmsearch.txtsearchstring.focus();			
			return false;
		}
		else if (document.frmsearch.optsearchin.value == -1){
			alert("Please select the from the dropdown list.")
			document.frmsearch.optsearchin.focus();
			return false;
		}
		return true;
}